Patents by Inventor Wei-Shin Yen

Wei-Shin Yen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • MEMS scan controller generating clock frequency and control method thereof
    Patent number: 8143561
    Abstract: A Micro Electronic Mechanical System (MEMS) scan controller generating clock frequency and a control method thereof are disclosed. The MEMS scan controller is for a MEMS mirror in a bi-direction laser scanning units (LSU). By detecting resonant frequency of the MEMS mirror, the scan controller sends frequency modulation signal and amplitude modulation signal of the MEMS mirror to a bridge circuit of the MEMS mirror for adjusting and stabilizing the MEMS mirror. A clock signal corresponding to the resonant frequency of the MEMS mirror at the moment is also sent so that scan data is sent within the effective scanning window in forward direction/reverse direction. Thus high-precision scanning is achieved.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: March 27, 2012
    Assignee: E-Pin Optical Industry Co., Ltd.
    Inventor: Wei-Shin Yen
  • MEMS Scan Controller Generating Clock Frequency and Control Method Thereof
    Publication number: 20110127404
    Abstract: A Micro Electronic Mechanical System (MEMS) scan controller generating clock frequency and a control method thereof are disclosed. The MEMS scan controller is for a MEMS mirror in a bi-direction laser scanning units (LSU). By detecting resonant frequency of the MEMS mirror, the scan controller sends frequency modulation signal and amplitude modulation signal of the MEMS mirror to a bridge circuit of the MEMS mirror for adjusting and stabilizing the MEMS mirror. A clock signal corresponding to the resonant frequency of the MEMS mirror at the moment is also sent so that scan data is sent within the effective scanning window in forward direction/reverse direction. Thus high-precision scanning is achieved.
    Type: Application
    Filed: October 20, 2008
    Publication date: June 2, 2011
    Inventor: Wei-Shin YEN
  • MEMS scan controller with inherent frequency and method of control thereof
    Patent number: 7924486
    Abstract: A MEMS scan controller with inherent frequency and a method of control thereof applied to controllers of a MEMS mirror of bidirectional scanning laser printers are disclosed. The amplitude of the MEMS mirror is adjusted by using the inherent frequency so that scan data string is sent within effective scanning window with preset frequency of a laser source of the laser printer and a certain time interval. Thus the controller is simplified and the high precision scanning is achieved.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: April 12, 2011
    Assignee: E-Pin Optical Industry Co., Ltd.
    Inventors: Wei-Shin Yen, Hung-Ta Leo
  • MEMS SCAN CONTROLLER WITH INHERENT FREQUENCY AND METHOD OF CONTROL THEREOF
    Publication number: 20090279156
    Abstract: A MEMS scan controller with inherent frequency and a method of control thereof applied to controllers of a MEMS mirror of bidirectional scanning laser printers are disclosed. The amplitude of the MEMS mirror is adjusted by using the inherent frequency so that scan data string is sent within effective scanning window with preset frequency of a laser source of the laser printer and a certain time interval. Thus the controller is simplified and the high precision scanning is achieved.
    Type: Application
    Filed: February 18, 2009
    Publication date: November 12, 2009
    Inventors: Wei-Shin YEN, Hung-Ta Leo